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@ARTICLE{Haas:863070,
      author       = {Haas, F. and Dickheuer, S. and Zellekens, P. and Rieger, T.
                      and Lepsa, M. I. and Lüth, H. and Grützmacher, D. and
                      Schäpers, Th},
      title        = {{Q}uantum interferometer based on {G}a{A}s/{I}n{A}s
                      core/shell nanowires connected to superconducting contacts},
      journal      = {Semiconductor science and technology},
      volume       = {33},
      number       = {6},
      issn         = {1361-6641},
      address      = {Bristol},
      publisher    = {IOP Publ.},
      reportid     = {FZJ-2019-03187},
      pages        = {064001 -},
      year         = {2018},
      abstract     = {An interferometer structure was realized based on a
                      GaAs/InAs core/shell nanowire and Nb superconducting
                      electrodes. Two pairs of Nb contacts are attached to the
                      side facets of the nanowire allowing for carrier transport
                      in three different orientations. Owing to the core/shell
                      geometry, the current flows in the tubular conductive InAs
                      shell. In transport measurements with superconducting
                      electrodes directly facing each other, indications of a
                      Josephson supercurrent are found. In contrast for junctions
                      in diagonal and longitudinal configuration a deficiency
                      current is observed, owing to the weaker coupling on longer
                      distances. By applying a magnetic field along the nanowires
                      axis pronounced h/2e flux-periodic oscillations are measured
                      in all three contact configurations. The appearance of these
                      oscillations is explained in terms of interference effects
                      in the Josephson supercurrent and long-range phase-coherent
                      Andreev reflection.},
      cin          = {PGI-9 / IEK-4},
      ddc          = {620},
      cid          = {I:(DE-Juel1)PGI-9-20110106 / I:(DE-Juel1)IEK-4-20101013},
      pnm          = {522 - Controlling Spin-Based Phenomena (POF3-522)},
      pid          = {G:(DE-HGF)POF3-522},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000431061600001},
      doi          = {10.1088/1361-6641/aabc6d},
      url          = {https://juser.fz-juelich.de/record/863070},
}